Add socketController.java

socketController.java

@@ -0,0 +1,14 @@
+package websocket;
+import org.springframework.messaging.handler.annotation.MessageMapping;
+import org.springframework.messaging.handler.annotation.SendTo;
+import org.springframework.stereotype.Controller;
+ 
+@Controller
+public class SocketController {
+
+	   @MessageMapping("/idle")
+	    @SendTo("/topic/idleAlert")
+	    public String handleMessage(String message) {
+	        return message; // Send idle alert to all connected clients
+	    }
+	}